package com.example.fly.controller;

import org.apache.commons.lang.StringUtils;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.fly.common.BaseContext;
import com.example.fly.common.R;
import com.example.fly.entity.User;
import com.example.fly.service.UserService;
import com.example.fly.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone=user.getPhone();
        if(!StringUtils.isEmpty(phone)) {
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);
            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //需要将生成的验证码保存到Session
            session.setAttribute(phone,code);


            //将生成的验证码缓存到Redis中，并设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功");
        }
        return R.error("手机短信发送失败");
    }

    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info("map:{}", map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();

        //从Session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从Redis中获取缓存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //进行验证码比对（页面提交的验证码和Session中保存的验证码比对）
        if (codeInSession != null && codeInSession.equals(code)) {
            //如果能够比对成功，说明登录成功

            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone, phone);
            User user = userService.getOne(queryWrapper);
            if (user == null) {
                //判断当前手机号是否为新用户，如果是新用户则自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }else if(user.getStatus() != 1){
                return R.error("该用户已被禁用！");
            }
            session.setAttribute("user",user.getId());

            //如果用户登录成功，删除Redis中缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }

        return R.error("登录失败");
    }

    //用户登出
    @PostMapping("/loginout")
    public R<String> loginout(HttpServletRequest request){
        //清理Session中保存的当前用户登录的id
        request.getSession().removeAttribute("user");
        BaseContext.removeCurrentId2();
        return R.success("退出成功");
    }

    /**
     * 根据用户电话查询信息
     * @param userPhone
     * @return
     */
    @GetMapping("/{userPhone}")
    public R<User> getUser(@PathVariable String userPhone){
        log.info("getUser:{}",userPhone);

        LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(userPhone != null,User::getPhone,userPhone);

        User user = userService.getOne(queryWrapper);
        log.info(user.toString());
        return R.success(user);
    }

    /**
     * 修改用户信息
     * @param user
     * @return
     */
    @PostMapping("/edit")
    public R<String> editUser(@RequestBody User user){
        log.info("editUser:{}",user);

        userService.updateById(user);

        return R.success("用户信息修改成功");
    }

    /**
     * 用户信息分页查询
     * @param page
     * @param pageSize
     * @param phone
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String phone){
        log.info("page = {},pageSize = {},phone = {}",page,pageSize,phone);

        Page pageInfo = new Page(page,pageSize);

        LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(StringUtils.isNotEmpty(phone),User::getPhone,phone);

        userService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    /**
     * 根据id修改用户信息
     * @param user
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody User user){
        log.info(user.toString());

        userService.updateById(user);

        return R.success("用户信息修改成功");
    }
}
